Simple Blinking LED

1//Blinking_LED
2//turn on the LED for half a second,then off for half  a second,repeatedly
3//support@sunfounder.com
4//www.sunfounder.com
5//2015.5.7
6/************************************************/
7const  int ledPin = 9;//the number of the LED pin
8/************************************************/
9void  setup()
10{
11  pinMode(ledPin,OUTPUT);//initialize the digital pin as an output
12}
13/************************************************/
14//the  loop routine runs over and over again forever
15void loop()
16{
17  digitalWrite(ledPin,HIGH);//turn  the LED on 
18  delay(500);               //wait for half a second
19  digitalWrite(ledPin,LOW);  //turn the LED off
20  delay(500);               //wait for half a second
21}

1//Blinking_LED
2//turn on the LED for half a second,then off for half
3  a second,repeatedly
4//support@sunfounder.com
5//www.sunfounder.com
6//2015.5.7
7/************************************************/
8const
9  int ledPin = 9;//the number of the LED pin
10/************************************************/
11void
12  setup()
13{
14  pinMode(ledPin,OUTPUT);//initialize the digital pin as an output
15}
16/************************************************/
17//the
18  loop routine runs over and over again forever
19void loop()
20{
21  digitalWrite(ledPin,HIGH);//turn
22  the LED on 
23  delay(500);               //wait for half a second
24  digitalWrite(ledPin,LOW);
25  //turn the LED off
26  delay(500);               //wait for half a second
27}